Features Three-jaw drill chuck is more stable and not easy to fall off. M10 shaft sleeve can withstand more torsion. The synchronous wheel is locked tightly to lock the sliding block position. Double flange bearings runs more smoothly. Delicate and practical, high hardness, very accurate. Specification:Item Type:Unpowered Spindle Drill Chuck:B16 Clamping Range: 1.5~13mm Bushing: M10 Connecting Rod: M10 Accuracy: 0.005mm Matching Bearing: F6800Z Synchronous Wheel: XL20 Tooth Package List:1 x Drill Chuck1 x Drill Chuck Key2 x Bearing1 x Black Washer1 x Slide Block1 x Synchronizing Wheel1 x Connecting Rod2 x Large Wrench1 x Shaft Sleeve(2 x Chuck Sheet / 1 x Sleeve) Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ording. Package List 1 x Drill Chuck 1 x Drill Chuck Key 2 x Bearing 1 x Black Washer 1 x Slide Block 1 x Synchronizing Wheel 1 x Connecting Rod 2 x Large Wrench 1 x Shaft Sleeve(2 x Chuck Sheet / 1 x Sleeve)